What GPS ap?

I've a Moto Droid 1. The google maps/navigate work well. Problem is when I have no phone reception the google navigate does not work. Back in the day before my Droid, i used telenav. does anybody have anything to say about telenav on the droid? Does anybody have any suggestions as to what GPS to use to overcome my issue?

So i had mg envy touch befoe the droid x. I used vs navigator and if i didn't have reception the gps would not work. Google maps has a dedicated sattelite so i think the droid will have a better gps. I don't know if droid one has the navigator by google but that's what i use all the time.